#2451BC#2451BC

#2451BC is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.1% C 0.176 H 263.7°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#2451BC
RGB	rgb(36, 81, 188)
HSL	hsl(222, 68%, 44%)
HSV	hsv(222, 81%, 74%)
CMYK	cmyk(80.9%, 56.9%, 0%, 26.3%)
CIE-LAB	lab(37.64, 24.69, -60.57)
CIE-LCH	lch(37.64, 65.41, 292.18°)
OKLab	oklab(47.13% -0.0193 -0.175)
OKLCH	oklch(47.13% 0.176 263.7)
XYZ	xyz(12.7438, 9.8892, 48.8044)
Luminance	0.0989 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2451BC #BC8F24

analogous

#249DBC #2451BC #4324BC

triadic

#2451BC #BC2451 #51BC24

tetradic

#2451BC #BC249D #BC8F24 #24BC43

square

#2451BC #BC249D #BC8F24 #24BC43

split-complementary

#2451BC #BC4324 #9DBC24

monochromatic

#102555 #1A3B89 #2451BC #426FDB #7697E5

Accessibility & contrast

On white

7.05

#2451BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#2451BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2451BC

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2451BC	#FFFFFF	#000000	##FFFFFF
##2451BC	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060C0

Deuteranopia (green-blind)

#0052BA

Tritanopia (blue-blind)

#006C7E

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2451bc;
/* rgb */ color: rgb(36, 81, 188);
/* oklch */ color: oklch(47.1% 0.176 263.7);

Tailwind

colors: {
  custom: {
    50: '#7881d1',
    500: '#2451bc',
    950: '#000000',
  },
}

SCSS

$custom: #2451bc;
$custom-light: #7881d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2451bc",
  "rgb": {
    "r": 36,
    "g": 81,
    "b": 188
  },
  "hsl": {
    "h": 222.237,
    "s": 67.857,
    "l": 43.922
  },
  "oklch": {
    "l": 0.47133,
    "c": 0.17602,
    "h": 263.7
  },
  "luminance": 0.09891
}

Semantic roles & 50–950 ramp

primary

#2451BC

secondary

#CCB170

accent

#B73DEB

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #2451BC

Body copy rendered with the generated semantic roles for this colour.

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